Florence kroeber



(No Model.) 7 2 Sheets-Sheet 1.

A, P. KROEBER.

APPARATUS FOR ADJUSTING THE BEAT OF PENDULUM GLOUKS. No. 526,399.

Patented Sept. 25, 1894.

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F. KROEBER. APPARATUS FOR ADJUSTING THE BEAT 0P PENDULUM CLOCKS. No. 526,399.' Patented Sept. 25,1894.

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' UNITED STATES PATENT OFFICE.

FLORENCE KROEBER, OF NEW YORK, N. Y.

APPARATUS FOR ADJUSTING THE BEAT 0F PENDULUM CLOCKS.

SPECIFICATION forming part of Letters Patent No. 526,399, dated September 25, 1894.

Application filed April 19, 1894- To all whom it may concern.-

Be it known that I, FLORENCE KROEBER, a resident of the city, county, and State of New York, have invented certain new and useful Improvements in Clocks, of which the followa suitable supporting ring or plate and supporting this ring or plate movably upon some portion of the clock case. Hitherto in clocks of this general character it has been customary to fasten the movement rigidly to the case and to fasten the dial rigidly upon the front of the caseor the movement has been attached and held to the clock case by the sash and dial. In these clocks as hitherto constructed it has been necessary, when the same have been placed upon a mantel or other support which was out of plumb, to adjust the same to proper beat by leveling up the clock by means of shimsor wedges or by taking the cases apart and changing the position of the movement in the case or by bending or otherwise adjusting the crutch or escapement. Now, by my invention I obviate all these difficulties.

I attain the object of my invention by means of the mechanism illustrated in the accompanying drawings, wherein- Figure 1 is a face view of a mantel clock showing one form of my invention applied thereto. Fig. 2 is a broken away rear elevation of the movement and the supporting ring or frame therefor. Fig. 3 is a side elevation partly in section of the mechanism illustrated in Figs. 1 and 2. Fig. 4isabroken away detail View of one form of supporting ring or frame. Fig. 5 is an isometric view of a modification thereof. Figs. 6, 7, and 8 are isometric face views of modified forms of rings, frames or plates showing also various Serial No. 508,123. (No model.)

means for supporting the same upon the- .of adjusting the clock, as before described, I

have found it advantageous to adjust the position of the movement to obtain the proper hang of the pendulum. This I accomplish by means of the following mechanism.

In the drawings, A is a clock case containing a suitable movement B, preferably a square Yankee movement, as shown. This movement is secured upon a suitable ring, plate or frame 0 of which several forms are shown, which is suitably secured to or carried by the clock case A and movable relatively thereto.

In Figs. 1 to 4 inclusive I have shown this ring as suspended at c from a pivot. This ring also serves to support the sash and dial D of the clock and to carry the same in its movement so that the position of the keyholes relatively to the key-posts will not be disturbed and the sash and dial kept in their proper relative positions.

In the form shown in Fig. 1 the adjustment of this ring relatively to the clock case is offected by means of a set-screw a projecting through a slot 1) in the clock case and entering an aperture in the ring 0. When the ring has been adjusted to the proper position the set-screw may be screwed down to hold the same in its adjusted position.

In my preferred form, as shown in Fig. 1, I pivot the ring preferably by suspending the same from its pivot, although the pivoting can be at the lower side, as shown in'Fig. 5, or even on the sides, if desired. This ring, plate or frame may also be held to the clock case so as to be movable thereon by means I of screws, clamps or bayonet lock or similar fastening.

In Fig. 6 I have shown the ring as attached to the clock case by means of a bayonet lock consisting of the angular slit (1 and hook pin 6, while in Figs. 7 and 8 I have shown this ring or plate as attached to the clock case by means of screws f working in slits g.

Difierent means for adjusting or moving the ring may be used to suit different conditions of practice. For instance,I may adjust the ring by means of a worm-shaft h working in some part of the ring, as for instance, the lug i, as shown in Figs. 6 and 8, or I may adjust the ring by means of a pinion as is upon a suitable spindle and co-operating with teeth Z upon some part of the ring, as shown in Fig. 7.

I do not limit myself to mounting this ring, plate or frame upon the inside of the clock case as the same may be readily mounted upon the outside, in which case it will probably take the form of an ornamental ring or indeed to any specific location of the ring on the clock case.

Now, it is obvious that if the ordinary form of gong were used with this adjustable clock movement the hammer H carried by the clock movement would not at all times be in position to properly strike the gong. To overcome this I provide a suitable gong as Esuitably mounted, as for instance, upon a post F,

the same being the ordinary arrangement for cathedral gong, and I provide this gong with 0 a curved portion e conforming to the are or sweep of the hammer H around the center of movement of the movable ring. By this means, when the hammer is in its retracted position, it will be at all times the same distance from the gong which is vital to produce uniform sound.

I will have it understood that I do not herein limit myself to the precise construction and arrangement of the parts herein shown, as the form, construction and arrangement thereof may be greatly varied without departing from the spirit of my invention; but

What I claim, and desire to secure by Let ters Patent, is-

The combination with a clock case, of a ring, plate or frame, adjustably mounted thereon and adapted to be moved relatively thereto together with a clock movement and sash and dial carried by the ring, plate or frame substantially as described.

FLORENCE KROEBER.

Witnesses:

O. BARTEL, W. VON SCHLEPEGRELL. 

